Machine for driving barrel-hoops



(No Model.)

J. S. ORAM,

MAGHINB POR DRIVING BARREL HooPs. No. 411,832. Patented Oct. 1, 1889.

WITNESSES l i w E5 INVENTOR.

Y es E E E 0) 1 1 a' l 1 71W f f @yg/QM m6 ARNEYJ UNITED STATES PATENT Prien.

JOHN S. OR-AM, OF CLEVELAND, OHIO.

MACHINE FOR DRIVING BARREL-HOOPS.

SPECIFICATION forming part of Letters Patent No. 411,832, dated October 1, 1889.

Application leil January 18, 1889. Serial No. 296,703. (No model.)

To all whom iz? may concern:

Beit known that I, JOHN S. ORAM, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Machines for Driving Barrel-Hoops; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will ena-ble others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in machines for driving barrel-hoops, in which the barrel rests on a depressible table support-ed by springs, and so arranged that in driving the hoop whenever a predetermined pressure is applied to the hoop the machine is automatically stopped and reversed.

My invention also relates to the detailsof construction, hereinafter described, and point-ed out in the claims.

vI-Ieretofore with this class of machine the pressure on the hoop has usually been applied by means of a hand-lever manipulated by the operator, who had in a measure to guess at the pressure being applied. The result was that a vlarge number of good hcops werebroken by excessive pressure, while other hoops, for want of sufficient pressure, were not driven tight enough. In view of the premi ses I have devised the mechanism illustrated in the accompanying drawings.

Figure 1 is a front elevation. Fig. 2 is a side elevation, in section, on line a; x, Fig. l. Fig. 3 is an enlarged elevation., in section, showing the manner of supporting the depressible table. Fig. 4f is a view, partly in section and partly in elevation, of the bedplate and table and interposed lever. Fig. 5 is a view in side elevation, partly in section, and a view in plan, of one of the drivers. Fig. G is a detached view, in perspective, of the upper portion of rod F. Fig. 7 is a view in elevation of cam-ring II; and Fig.`8 is a view of upper end of driving-arm c2, showing the weight c'1 thereon.

A represent-s the bed-plate, upon which are secured the columns A', the latter being connected near the top by a heavy cross-beam A2, these members constituting the framework of the machine.

B is the driving-shaft, the same having a beveled pinion B', that engages a larger gear B2, the latter being mounted on a vertical screw-rod B3 of large size. This screw-rod is journaled in the bore of the hub of crossbeam A2, and the threaded section of the screwrod engages the threaded bore of the hubof disk O. embrace guides on the columns, and screwrod B'rs has a collar below the cross-beami-to hold the screw-rod endwise. The drivingshaft is provided with friction-clutch and mechanism for starting, stopping, and reversing the machine, such clutch mechanism being operated by a hand-lever D.

As the parts thus far mentioned have heretofore been in common use in trussing-machines, `no further description of them is considered necessary, except to state that the hand-lever D is moved upward by the operator to start the machine in the direction that forces disk C downward to drive a hoop. The bed-plate is provided with an upwardlyprojecting rim d, that fits nicely inside the depending rim E of table E, these engagingrims serving as guides for the table. As the bed-plate is large and heavy, it is considered better practice to make rim c. detachable, so that it can be turned off separate from the bed-plate, to which it is attached by screws, as shown.

Table E has a series of depending hollow lugs E2, located at equal intervals just inside the rims aforesaid, these lugs being bored and fitted with rubber springs e and with followers e', the latter being located outside the springs. These followers are of considerable depthnsay two inches, more or lessand rest on the bed-plate, by which arrangement table E is yielding-ly supported by the springs. Several studs e2 pass loosely through holes in the table, these holes being countersunk to admit the heads of the studs flush with or below the surface of the table. These studs screw into threaded holes in the bedplate, and are screwed down to depress the table and thereby compress the spring to approximately the pressure necessary in driving ahoop, and also hold the ytable in position and prevent the displacement thereof, the

countersink in the top of the table being` sufficiently deep to allow the table to be de- This disk is provided with gibs that IOO pressed the necessary distance for tripping the gear without coming in contact with the barrel supported on said table.

A lever F serves as a balance-beam, and is located between the bed-plate and table and extends out through slots in lrim d and E. This lever is fulcrumed on a lug a', extending upward from the bed-plate, and the lever is engaged on top by a lug e3, depending from the center of the table. Theselugs are locat-ed so near together that a` slight Ydepression of the table elevates the outer end of the lever some considerable distance. The outer or free end of lever F is connected with an upright rod F', that extends up along the side. of hand-lever D, but rearward of the fulcrumof. the latter. Rod. F is provided withv a set/screw f, located in position .to engage'the -nnder side of lever D with the yupwardmovement of rod F. `This set-screw is adj usted accurately to engage the hand-lever justgas thetable is depressed and the .maximum` pressure applied to the hoop, such engagement of set-screw f with lever D causing the. latter to move in theI direction to reverse the machine. The pressure applied to the hoop does not, therefore, depend inthe least upon the operatoigbut is automatically regulated,so lhat each hoop is driven `asltight and 4no Vtighterthanit should be. The. result is that no goodhoop is broken; but each poor hoopgin driving is and oughtV to be broken. TableE has an upwardly-projecting hub E3, that serves as a center pin for plate G. `The latter restsl and may turn upon the table, and thez barrel during the 4hoop-driving vrests directly on this plate, suitable adjustable stops being. lconnected with the plate (but not shown) for bringing the barrel centrally over the table.

lATrshaped lever ,is pivoted at g to one of the columns aforesaid, the forwardly-.proj ecting handle thereof g being in such proximity to lever D that the operator can conveniently handle both levers. The .rearwardly-projectingmember of the lever is weighted, as shown at g3, and the depending arm thereof g'iis embraced loosely, for instance, by fingers projecting laterally fromv plate G, as as shown at G. Vith such arrangement of parts, by depressing handle g plate. G is turned on its =axis in the one direction, and

when handle g is released the weight at thel otherend of this lever returns plate G .toits normalposition, suitable stops (not shown) being provided to limit the movement of plate G in either direction. If, for instance, in driving the hoop the latter .is bent edgewise a trifle, by rotating plate G by means of the` hand-lever aforesaid the barrel is turned onits axis tso that with a second stroke of the machine the driver strikes thehoop at a pointlmidway between where the drivers engage-the hoop at the first stroke.

It will be Observed that the mechanism for turning the barrel on its axis is simple and inexpensive, and the twoilevers for operating the machine are in such relative position that only one operator is required.'

i Disk C aforesaid is provided with a series of vertical radial slots at the periphery, with ears C located on either side of each slot for embracing, respectively,the driver-arms c and c, each driver-arm being pivted to and be-4 tween a pair of ears, so that each arm may swing in the direction toward or from the barrel. The front-side driver-arm cis pivoted between the prongs of a forked stud, so that this arm, like the other, may swing toward and from the barrel, and by reason of the stud being journaled in a radial hole in disk C the stud may turn on its axis, and consequently arm c2, when it is drawnl back from' contact ywith the barrel, may also be swunglaterally, and this arm c2 is used as a lever for swinging arms c and c back from` .the

barrel inplacing thebarrels on or removingv them from `the table. The mechanism for accomplishing this is as follows:

Ontop of disk C is mounted aA cam-,ring H, the same being concentric with the disk, and the cam-ring being held `downto its seat by stud l-l, the latter passing ythrough curved slots H2 of the ring and screwing into threaded holes in diskfC. Bing H at the pe-v riphery and underside thereof isv provided with a series of pocketshavin g inclined walls h on the one side thereof. The upperends or heads of arms c and c above the fulcrums thereof extend into these pockets, and Ywhen the cani-rin g is rotated in the onedirectionthe inclines h engage and depress the. heads of these arms, whereby the arms below the fiilcrums thereof are swung outward or away from thebarrel. lVhen the cam-ring is. re-

versed, these arms by gravity move4 toward The only difference between arms the barrel. c and c vis that 'the heads of the latter are longer and the engaging-inclinesmore abrupt,

whereby the two armsc, both located on theY front side of the barrel, swing farthernaway from the barrel to facilitate moving the, barrel to and from themachine. The upper end of arm c2 is connected by link h with the cam-ringH, so that by turning arn1c2 later-` ally the cam-ring is turned on its axis andthe different `driver-arms are thus distended. The different driver-arms curve outwardly to embracethe barrel, thus bringing thecenter of gravity 0f each arm outside itspivotal bearing, which, together with weights c3, at

tached to lthe respective arms, cause the latten,

when left freeA by the reverse movement of the cam-ring, togravitate toward the barrel. -Arin c2 has attached on the `top andon the outer or front side thereof a heavy .poise c4, sufficient in weight to counterbalance arm c2 when they latter is turned laterally.l When this arm is in avert-ical plane, poise c4 being, as aforesaid, on the outside of the arm is out-V side of the pivotal bearing of lthelatterand causes the arm to gravitate-toward the barrel. Drivers I consist each of a hardened-steel plate, usually foursided. 'lhese are respect- IOO IIO

ively secured by means of a bolt or stud I to the end of a driver-arm, such securing-bolt also passing through a central hole in an inverted conical washer i of considerable length. The driver is adjusted with one edge thereof presenting toward the barrel, and such edge is curved to approximately t the surface of the barrel. Each driver on the under side thereof is provided with a slight groove i', such groove extending to and running parallel with the contiguous edge of the driver, this groove in cross-section being adaptedto receive the edge of the hoop, and by this groove the driver is held rmly upon the hoop. Usually the four edges of the driver are thus provided each with a groove, so that when the one edge of the driver becomes Worn by loosening the securing-bolt another edge of the driver can be brought to bear upon the hoop. The four edges of the driver may thus in turn be utilized. The base of cone I extends to the inner edge 0f groove i', this cone serving as a guide for the driver. Heretofore ithas been dicult to drive the chine-hoops by means of a machine, and such chine-hoops have therefore usually been driven by hand. Vtith my improved construction, and the machine having been reversed before conesi are drawn entirely above the hoop that is to be driven, the cone, during the down movement thereof, by engaging the hoop guides the driver to its place on the hoop and prevents the driver from chain g the barrel. Under such conditions it will be readily understood that the chine-hoops can be driven with the same facility as the balance of the hoops. Various modifications may be had Without departing from the spirit and purpose of my invention. For instance, in place of springs for supporting the depressible table, levers and Weights might be employed for the same purpose,but lsuch weights and levers would be cumbersome, and the springs are therefore preferred; also, spiral or other forms of spring might be substituted for the rubber springs shown. In place of handles g', a treadle might be arranged near the door and connected with this lever, so that the operator could rotate plate G by footpower.

1. In a machine for driving hoops, the conibination, with a movable table and springs for yieldingly supporting same, of bolts for partially depressing the table and sp rings and holding them depressed, substantially as set forth.

2. In a machine for driving hoops, the combination, with a movable table, springs for yieldingly supporting same, and bolts for partially depressing the table and springs and holding them depressed, of drivers acting in a direction opposite to the direction of pressure of the springs, substantially as set forth.

3. The combination, with depressible table, substantially as indicated, of plate or false top supported by and adapted to turn on such table, a hand-lever connected with the plate for turning the same on its axis, a counterbalance connected with such lever for reversing the plate, substantially as set forth.

4. The combinationgvith a series of gravity driver-arms and cam-ring for engaging and distending such arms in opposition to the gravity of such arms, of a driver-arm having a universal fulcrum, a link connecting such arm With the cam-ring, whereby a lateral movement of this arm rotates the cam-rin g and causes distention of the other driverarms, substantially as set forth.

5. The combination, with a series of gravity driver-arms acting in vertical radial planes,a cam-ring for distending and elevating such arms, of arms c2, having a universal fulcrum, such arm being connected by a link with the cam-ring and having a counter-balance located above and outside the fulcrum thereof, whereby such counter balance by gravity moves thisarm toward the barrel when such arm is in its depending position, substantially as set forth.

6. The combination, With driver-arms, substantially as indicated, of drivers connected With the free ends of these arms, such drivers consisting, essentially, of metal plates set edgewise to and approximately fitting the barrel, eachdriver having a groove on the under side thereof extending to and parallel with the adjacent edge ot' the driver, such groove being adapted to receive the edge of the hoop, substantially as set forth.

7. The combination of driver-arms, drivers, and removable and adjustable conical guides located below the drivers, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two Witnesses, this 9th day of November, 1888.

JOHN S. ORAM.

VVtnesses CHAs. H. Donna, ALBERT'E. LYNCH.

IOO 

